In HelloWorld.Application/Views/ApplicationView.Xaml line 66, you'll see a reference to a StaticResource NotNullConverter. In ReSharper 5, this resource was located just fine. In ReSharper 6, this resource is not only not located, I cannot Ctrl-Shift-Space on the Symbol to locate possible candidates for me. This is a highly valuable operation and would greatly appreciate having this functionality in ReSharper 6. :)